Home / 81,086.40-121,590.72-41,623.20

Finding the Fourth Proportional to 81,086.40, 121,590.72 and 41,623.20

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Solution

The fourth proportional to 81,086.40, 121,590.72 and 41,623.20 is: 62,414.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,086.40 : 121,590.72 = 41,623.20 : x
  2. Step 2: Convert to fraction form
    81,086.40/121,590.72 = 41,623.20/x
  3. Step 3: Cross multiply
    81,086.40x = 121,590.72 × 41,623.20
  4. Step 4: Simplify right side
    81,086.40x = 5,060,994,856.70
  5. Step 5: Solve for x
    x = 5,060,994,856.70/81,086.40
  6. Step 6: Final answer
    x = 62,414.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.